I've seen this several times..... please tell me what it means when you type "bump".
"Bump" or any form of it, means that they're "bumping" their thread to the top of the list of threads in that particular forum. Most forums allow a bump every 24 hours. This one doesn't rotate as fast as i've seen on some with larger members such as CorvetteForum or LS1tech, both of which will put your ad on the 4-5 page with in 12 hours. They're crazy, but have 150,000+ members each.
Corvette Forum actually has 226,733 and LS1tech has 156,143 members.